Where this informations are located in hard disk. I found new files are creating in "/dev" dir and in "/sys/bus/usb/" etc.., when I connected a new device in hub is there any easy way to find it from there?. That is useful to my program
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Arun Kumar K SJan 17 '13 at 13:16

dmesg output will tell you where your USB hub info files and etc. are being located ;)
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mtndesignJan 17 '13 at 13:50